Patent · US Active

Mixtures and emulsions to reduce energy in gypsum wallboard manufacture

US8580055B2 · kind B2 · utility

3Cited by

40References

54Claims

0Family size

Assignee

The Henry Group · US

Inventors

Jonathan T. Stuart · Lansdale, US
Dennis Michael Mahoney · Long Valley, US
Ariel Lender · Schwenksville, US
Norman R. Davies · Pottstown, US

Key dates

Filing date	Jan 22, 2010
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Dec 13, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/0062
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Provided herein are mixtures, emulsions and other additives for use in manufacturing gypsum wallboard. The mixtures and emulsions may be wax-based emulsions or wax-free mixtures or emulsions, with wax-based emulsions including water; at least one wax, a dispersant which may include sulfur or a sulfur-containing group, and a particular wetting agent or surfactant. Mixtures may also be prepared including water, a dispersant, and a particular wetting agent or surfactant. Gypsum slurries may be prepared using such emulsions and mixtures.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.